When the sewer line fails, everything downstream of it stops working. Authority Plumbing & Drain repairs and replaces damaged sewer lines for homes and businesses across St. Charles County, from root intrusion and cracked joints to collapsed and sagging lines. We camera the line first so you know exactly what’s wrong and what it actually takes to fix it, instead of guessing from the symptoms.
Clogged line or damaged line? They’re not the same problem
This is the first thing worth sorting out, because the fix is completely different. A blockage means something is stuck in an otherwise sound pipe, and clearing it solves the problem. Damage means the pipe itself has failed, and no amount of clearing fixes it for long. If your line clogs once and stays clear afterward, that’s a cleaning job and our drain cleaning service handles it. If the same line backs up again and again, that pattern usually means damage.
Signs your sewer line needs repair
Repeated main line backups
A line cleared every few months isn’t unlucky. Something structural is catching debris every time.
Multiple drains backing up at once
Toilets, tubs, and floor drains acting up together points past any single fixture to the main line.
Sewage odor indoors or in the yard
A smell of sewage around the house or a patch of yard means waste is escaping the line somewhere.
Soggy or unusually green patches
A lush stripe across the lawn, or ground that stays wet without rain, often traces the path of a leaking line.
Slow drains throughout the house
Not one slow sink, but everything draining sluggishly at once.
Foundation or yard settling
Sinkholes, dips, or settling above the line’s path can mean soil is washing into a break.
What causes sewer lines to fail
Tree roots. Roots seek moisture and find their way into small gaps at pipe joints. Once inside, they keep growing, catching debris and eventually cracking the pipe open. This is one of the most common causes of sewer failure in established neighborhoods with mature trees.
Age and pipe material. Older homes around the St. Louis and St. Charles area were often built with clay or cast iron sewer lines. Clay is brittle and its joints separate over time. Cast iron corrodes from the inside until the wall thins and fails. Both have a finite lifespan, and plenty of local lines are at the end of theirs.
Sagging or bellied sections. Soil settles, and a length of buried pipe can sink into a low spot. Water still passes, but solids collect in the dip and build a blockage that no cleaning permanently fixes.
Shifting ground and joint separation. Freeze and thaw cycles, heavy equipment overhead, and ordinary soil movement can pull joints apart or crack a line outright.
Grease and scale buildup. Years of accumulation narrows the pipe until the line can’t keep up with normal use.
We camera the line before we quote the work
Sewer repair is not the place for guesswork. Running a camera down the line shows us what’s actually happening and where: roots at a specific joint, a belly holding standing water, a crack, a separated section, or a full collapse. We locate the trouble spot so any digging is targeted rather than exploratory.
That matters for you in two ways. You see the same footage we do, so the recommendation isn’t something you have to take on faith. And knowing the exact location and extent of the damage is what separates a contained repair from tearing up a yard looking for the problem.
Repair or replacement
Spot repair
When the damage is confined to one section and the rest of the line is sound, we repair just that part. It’s the right call for a single crack, a separated joint, or one root-damaged length.
Full line replacement
When a line is old, failing in multiple places, or badly bellied, replacement is the honest answer. Patching one spot in a pipe that’s failing along its length just moves the next call a few months out.
We’ll tell you which situation you’re in and why, based on what the camera shows. If a spot repair will hold, that’s what we’ll recommend.
Sewer clean out installation
A sewer clean out is an access point that lets a plumber reach the main line directly instead of working through a toilet flange or a roof vent. If your home doesn’t have one, or the existing one is buried, damaged, or inaccessible, installing a proper clean out makes every future service call faster, cleaner, and less invasive. It’s a small addition that pays for itself the first time the line needs attention.
Commercial sewer repair
Restaurants, retail, and multi-unit buildings put heavy, constant demand on sewer lines, and a failure means closing the doors. We handle commercial sewer repair and replacement on schedules built around keeping you open, and pair it with the grease line and drain work covered under our commercial plumbing services.
Sewer line questions, answered
How do I know if my sewer line is broken or just clogged?
The pattern tells you. A one-time backup that stays clear after cleaning was a clog. A line that backs up repeatedly, or multiple drains failing at once with odor or wet spots in the yard, points to damage. A camera inspection settles it definitively.
Can tree roots really break a sewer line?
Yes. Roots enter through tiny gaps at joints or hairline cracks, then expand as they grow, which widens the opening and can fracture the pipe. Root intrusion is among the most common causes of sewer line failure in older neighborhoods.
What is a sewer clean out and do I need one?
It’s a capped access point to your main sewer line. It isn’t required for the line to function, but it makes servicing the line far easier and less disruptive. If your home lacks one, adding it is usually worthwhile.
Do you offer camera inspection of sewer lines?
Yes, and we lead with it on any suspected sewer problem. Diagnosing before digging is the only sensible way to approach this work.
Will my whole yard have to be dug up?
Not usually. Locating the damage precisely with a camera means excavation can be targeted to the problem area rather than following the line blindly. The extent depends on where the damage is and how much of the line is affected.
Sewer trouble? Let’s find out what’s actually wrong.
Camera inspection, straight answers, and sewer line repair done right across St. Charles County.
Call (314) 326-1160